If you friends intent is to shoot stills and not video my suggestion would be any of the small strobes that fire using fiber optic cords. The Inon S-2000 is probably the most cost effective with a single tray and strobe arm setup. /the Weefine 1000 is more than a bit under powered. The ring light 3000 is a better option but about as expensive as a strobe and most suited to macro.